randall



6.6. RANDALL. I THERMO ELECTRIC GENERATOR.

fr z; W p y A 6 .7 6 a M a I? V .VWVL 7W6- j in 2 1,0 T- pm; m; W In W; J 3. w w 2 j reducers, or sow mm,

forming part of Illefiiero :eaiem .u' .-:24,4.eea,(umq'.iiu io,

, Application file-'1 May l3, 165i. (Nu modcll V i .ro whom it may concern Be it lmowu that 1, CHARLES AF QANDALL, e citizen of the United Sta-Les, residing or, New Yorlr,,io iDllO county of blow York. and State of New York, have invented new and useful 1m movements in Thermal-Electric Generators, of which the following is especiiicat-iou This invention relul-esiio that class of apps rams 'lccowu as ihermo-eleetric batteries or general rs, in which the electric current is esleblishcd by applying heat to one of thejuno close, in u circuit composed of two did'ercnt metals. As is well known, extremes of temperature fevor developmeot oi he current in these hotieries, so that if heals be applied to one junction and cold to the olher u more powerful current will he produced than by heating alone.

The essential ohjeel", of my invention is to utilize the heat genero'ted in e stove, range, or furnace employed for heating or for culinary purposes both fin the purpose of healing one port or portion of u thermoelectric element or elements of u thermoelectric generator to a very high degree of temperature, and also for.

producing the cold to which the opposite per l; or portion oi the element is to be subjected.

My invention consists, first, in u ,syetcru of thermoelectric generation, the combination of one or more ihermo-elcctric elements with a healing and u i'rc'oziu upper-unis, respectively adopted to subject said elements to a highdegree of heatzmdto atcuipcreturc below the freezing-point for the production of electricity, as described; second, in a, system of thermo electric geueroiion, the combination, with o heating apparatus-the heat from which is employed for the production of cold, of one or more thermoelectric elements arranged to be suh'eoicd lo the eciioo of'thc heet aurl cold for ihc' production of electricity; third, in a system of thcrmoelcclrio generation, one or more thermoelectric elements, in combination with on apparatus for producing" ice and uruoge or furnace; four-Liz, iu o thermoelectric geocroior, the combination of motels differing texture or ale, or of metal and carbon," or, god ill oircuituod suhje d has she action of ii or, end also to a low degree of tempera ture by means of c, l lQSZlPV apparatus, suh-.

u'teuiiully described,

lo the recompile druwiugs,Figure 1 is a perspecli e view of e furuuce or range adapted for household purposes, sold figure also illustreiiug a portion of an ice-machine, with one electrode or terminus ofeach clemeub of' a thermoelectric hattcry extcudod out from the side of the range, cud also from theice-tunk, Fig, 2 is a'view of one element of thermoelectric boiler-y composed of dificrcnt metals; Fig. 3, an edge view of three elements of a. different size from Fig. 2; Fig. 4, a like View of two of the same,- constructed with intermediate pieces of metal and carbon; Fig 5, a

similar view of one of said plutesor clement-s composed of different 'mctels; or of metal aud carbon. 7 ,7 i I A indicates an ordinary cooking-rouge, which can be adapted to my iuyfeution with hutlittlo V 7 expense. i v B B refer to the elements of u thermoelectric battery, each element consisting of a strip, bar,

orplate composed of several metals, for purposes well known in thcconstruct-ion of a, but- I bismuth, antimony, German silver,- carbon, or alloys ofmetuh-so as to form it continuousplate, which constitutes one element of a thermoelectric generator. Those metals or metals and conductors can be combined inverious ways, the object being to=provide an element of a thermoelectric battery which can he arranged so that cue portion thereof will be subjected to the heel: from (he fire in a range, furnace, or analogous heating apparatus and the opposite terminus of said element he extended out from the furnace into a suitable freezing-tankor'ro frigemtiug' apparatus. l li'e'se plates or parts of the elements, which ere arranged in close proximity to the fire'yure insulatcdfrom'esichi other, and pass through the range, so as to extend out from both sides thereof, one piece 8' ice-tank l) of an ice-machine, so that it will be exposed io a low degree of temperature during the process of refrigeration caused by the ammoniacai gas passing through the pipes din said tank, the said pieces (J 0 being connected together substantially as in Figs. 3, 4, or 5, as described.v As many of these elements may be employed as may be found desirable.

In the present instance the ammonia-still for the ice-machine is arranged within the range, so that the same fire that is employed for culinary andheatingipurposes andfor heat=- ing the oven also serves to heat the still and cause the ammonia therein. to boil.

E indicates the condenser of the icen achin e,

in which are arranged the pipes e 0, connectedwith' the still g by the pipe e. The pipes in the condenser connect with the pipes in the freezing-tank,as usual, by a pipe, f, and the pipe f leads from the freezin g or ice tank back to the still. It will be obvious, then, that the elements of the battery that are within the freezing-tank'will be subjected to an exceed-- ingly low degrec of temperature during the process of making ice.

- 'Asice-ma-chines ofthis nature are well known,

as the elements of a galvanic or. mechanical generator. Th'elementsbf this battery can be made in various ways without departing from my invention,the main desideratum being the combination of conductors in circuit best adapted to-produce the greatest amount of electr'o-motive force by the application of heat and cold thereto and the application of the same to the greatest range of temperature that can 'be obtained in the simple, economical,and

practical manner'hereinbefore setfoith. The electric current thus generated can be utilized forvariouspurposes-as,forinstance,tbrhousehold uses, such as electric lighting, electric;

motors for driving sewing-machines,call-bells, door-bells, burglar-alarms, and other purposes.

In the elements shown in Fig. 4 each element is composed of two pieces, 0, of copper In Figs. 2, 3, 4, and 5,Y Y indicate the terminal wire-connections of these elements, the -w1res connecting with said elements at their extremities uniting at the single wires Y, as

shown; or the said terminal wire-connection can be made at or near the inner ends of the plates 0, as indicated byjhe wiresWW, Figs.

It will, of course, be understood that the elementsofathermo-electric battery-have here tofore been subjected to the action of heat and cold; but prior to my invention the saidelements have not been subjected to a degree of 7c heat above Fahrenheit and at the same time to the action of cold at a temperature below the freezing point, or at or below 30 Fahrenheit. By sub ectin g the elements to such extremes a. more powerful current can be obtained than heretofore.

What I claim is j 1. In a system of thermoelectric generation, the combination of one or more thermoelectric elements with a heating and afreeziu g apparatus adapted to subject said elements to a high degree of heat and to a temperature below the freezing-point for the production of electricity,

substantially as described. I

2. In a system of thermo-electrie generation, the combination, with a heating apparatus the heat from which is employed forthe produc tion of cold, of one or more thermo-electric elements arrangedto be subjected to the ac-. tion of the heat and cold for the production of electricity, substantially as described. 3. In a system of thermoelectric generation, one or more thermoelectric elements, in combinatiou with an apparatus for producing ice and a range or furnace. substantially as described.

4. In a thermoelectric generator, the. combination of metalsof difi'erent texture or grade, or of metal and carbon, arranged on circuit and subjected to theaction of heat, and also to a low degree of temperature by means of a freezing apparatus, substantially as described. In testimony whereof I have hereunto set my hand in the presence of two subscribing witnesses.

CHARLES A. RANDALL. Witnesses k p PHILIP G. RANDALL,

Danronrn BECKER.

IOC 

